A monitoring system developed to listen for secret nuclear tests mostly hears other events happening all around Earth.

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It is important to get enough sleep, but what happens when you get those eight hours in little naps instead of in one big chunk at night?

Not everyone gets a winter as cold (or at the same time) as we do at SciShow, but no matter where you live, you may have wondered why venturing out into the cold often makes you have to pee more often.

Humans have been eating seafood for thousands of years, but some animals don’t grow very fast, and others taste pretty gross for at least part of the year. To solve these problems, scientists sometimes turn to genetics. If you eat...

Sleep is complicated. And there's still a lot we don't know about it, but zebrafish larvae are a surprisingly good place to look to learn more about what makes us sleepy.

Species that no longer exist vastly outnumber those that currently populate the planet, but occasionally we rediscover a species we thought was extinct!

Hank tells us about near-earth objects & primordial black holes; new developments in evolutionary genetics; a giant squid & a giant radio telescope; & answers viewer questions about disposing of nuclear waste in space.

Hank boils down a new report from the United Nations about global warming and tells you five things you really need to know about our warming world.

Scientists have taken a look at the underground lake found on Mars in 2018, and it might not be the only one! Plus, new clues might help us understand why the Sun’s atmosphere is so much hotter than the surface!

There are quite a few ways that humans influence the weather, and even on local levels, human activity can produce more rain. Whether by accident or on purpose, increasing rainfall isn't as far-fetched as it sounds.

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With a recent announcement from the UN Office for Outer Space Affairs, the doors to space research have been opened for many new countries.

Cassini is about to take its final dive into the rings of Saturn, and scientists are still debating the status of water on our moon.

Astronomers have found a new celestial object, and it's moving really, really fast!

NASA is sending a robot to Saturn’s giant moon Titan and instead of landing, orbiting, or driving when it gets there, this mission will fly.

Losing half of the world sounds like a weird, abstract dream state. But for those that develop hemispatial neglect, that’s exactly what happens, without them even realizing it.

They have some of the best caterpillars in Peru. The best.

Big or small, most creatures end up on something else's dinner menu. But the velvet ant combines a ton of defenses into one very unappetizing package. 

Longtime YouTuber and internet problem solver, Mike Falzone, goes head-to-head with Hank Green to see who is the true Quiz Show master!

This week, scientists announced great news about our brains and those discoveries may help us find the cure for a number of diseases and disorders.

Snakes aren’t just muscle-y danger noodles. They're extremely diverse, and some have really weird, unique adaptations that we could all probably appreciate a little more.

Hank tells us how some gamers are outperforming sophisticated computer programs to help solve the puzzle of protein folding and to assist scientists in finding better treatments for HIV/AIDS, cancer, and Alzheimer's.

A new model has been able to predict solar flares with up to about 20 hours of warning, and our galaxy is farting blobs of cold gas inside the Fermi Bubbles!

Most of the time, it’s not great when an expensive spacecraft slams into an extraterrestrial body. But now and then mission control intentionally crashes a spacecraft for science!

The universe is expanding. But how much is it expanding? Is it doing expanding the same way everywhere? And can physics actually explain the expansion?